Clamp for rigidly connecting a vibratory hammer with pipe or timber piling



United States Patent 3,136,562 CLAMP FUR REGEDLY CQNNECTH'JG A VIBRA- TURY HAMMER WHTH PEPE GR THVEBER EELHNG Moses Hornstcin, Merrick, N.Y., assignor'to Horn Pile 8;:

Foundation Corp, Merrick, N.Y., a corporation of New York Filed May 7, M63, Ser. No. 278,726 2 Claims. (Cl. ZN-41) The invention herein disclosed relates to means for connecting pile hammers of the vibratory type with pipe or timber forms of piling.

It is known that piling in tubular form and timber piling vary in size and shape, making it difiicult to effect a firm and positive grip.

It is further known that the connection between a vibratory hammer and the pile must be absolutely rigid to impart the vibration from the hammer to the pile.

The purpose of the present invention is to satisfactorily meet these particular conditions and requirements.

Specifically it is an object of the invention to provide a connector of simple readily handled constructionwhich can be quickly applied to and rigidly secured to piling of varying dimensions and which will then enable rigid connection with the vibrating hammer.

Further special objects of the invention are to provide this connector in a simple, rugged, durable, and relatively inexpensive form.

The foregoing and other desirable objects have been attained through a novel combination, construction and arrangement of parts, involving a special head or clamp adjustable into rigid engagement over the head of a pile and provided with an upstanding rigid strut formation engageable in the grip of the pile clamp forming a part of the vibratory hammer.

Other desirable objects and novel features of the invention are set forth and will become apparent in the following specification.

The drawing accompanying and forming part of the specification illustrates a present commercial embodiment of the invention. Structure however may be modi fied and changed as regards the immediate illustration,

all Within the true intent and scope of the invention as hereinafter defined and claimed.

FIG. 1 in the drawing is a front elevation of thenew pile connector.

FIG. 2 is a front elevation of the same turned 90 degrees from the first view.

FIG. 3 is a top plan view.

FIG. 4 is a broken, part sectional elevation on a smaller scale, showing the connector in actual use.

As shown in the several views, this connector is made up in unitary form of two generally L-shaped members of heavy, rigid steel plate secured together in back to back relation and having dependent therefrom substantially semicircular clamp sections which can be brought together in rigid holding engagement on the pile.

In FIG. 2 the L-shaped members are designated 5 and 6, each having a fiat upright upper portion 7 connected by a lower outwardly inclined portion 8 with a fiat angularly extending semicircular base portion 9.

These members are secured together in flat, back to back relation by rivets or bolts or other fastenings, as indicated at 10, and these are shown as reinforced by braces 11 in the angle between the inclined or divergent portions 8 and the horizontal base portions 9.

The divergently angled portions 8 while rigid with the Patented June 9, I964 "ice base portions have suflicient inherent flexibility to permit adjustment of the dependent clamp portions to the pile.

The companion, generally semicircular, clamp sections are designated 12, welded or otherwise secured in dependent relation to the semicylindrical base portions and having flanges 13 projecting angularly at their upright end edges to stand in substantially parallel relation, as shown in FIG. 3, and perforated at 14 to receive the clamping bolts 15, FIG. 4.

While rigid on the pile the clamp has enough inherent spring or resiliency to enableforcing of the same over an oversize pile head and to enable the bolts to take up and eiiect rigid connection of the cap over the head of the pile.

FIG. 4 shows how with the cap contracted on and rigidly secured to the pile the upstanding strut or grip portion may be engaged and secured in the power vise 16 usually present on the bottom of a vibratory hammer such as indicated at 17.

In this condition the straight upper edge 18 of the connector is solidly engaged with the bottom of the hammet, with the pile clamp 16 locking it in that relation and the companion segments are rigidly closed over the sides of the pile, with the base portions 9 solidly engaged over the top of the pile.

The full vibratory action of the hammer is thus necessarily communicated to the pile.

The structure is rugged and capable of carrying the full load imposed upon it.

What is claimed is:

1. A clamp for rigidly securing a vibratory hammer to pipe or timber piling, comprising a pair of substantially L-shaped members having upright portions secured together in back to back relation,

fiat angularly extended semicircular base portions and divergent portions connecting said upright portions with said base portions, opposed segmental clamp portions dependent from said flat base portions and provided with opposed angularly extended flanges at the end edges of the same,

said opposed end flanges having registering openings for bolts to draw said clamp portions together into rigid engagement with a pile. 2. A clamp for rigidly attaching a pipe or timber pile to a vibrating hammer, comprising a pair of substantially L-shaped members having upright portions secured together in back to back relation and connected at their lower ends by divergent portions with angularly extending semicircular horizontal base portions, opposed segmental pile engaging clamp portions dependent from said horizontal base portions, and

means for forcing said opposed clamp portions together into rigid holding engagement with a pipe or timber P said back to back upright portions having a combined thickness to enter in the pile clamp of a vibrating hammer and an upper edge to seat in rigid abutting engagement with said pile clamp to thereby position the pile in the grip of said clamp portions directly beneath the vibrating hammer.

References Cited in the file of this patent UNITED STATES PATENTS 502,273 Bergmann Aug. 1, $39") UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION June 9, 1964 Patent No. 3,136,562

Moses Hornstein It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected below.

In the grant (only) line 1, for "Moses Horstein" read Moses Hornstein Signed and sealedthis 6th day of October 1964.

SEAL) Attest:

EDWARD J. BRENNER ERNEST W SWIDER Commissioner of Patents Attesting Officer 

2. A CLAMP FOR RIGIDLY ATTACHING A PIPE OR TIMBER PILE TO A VIBRATING HAMMER, COMPRISING A PAIR OF SUBSTANTIALLY L-SHAPED MEMBERS HAVING UPRIGHT PORTIONS SECURED TOGETHER IN BACK TO BACK RELATION AND CONNECTED AT THEIR LOWER ENDS BY DIVERGENT PORTIONS WITH ANGULARLY EXTENDING SEMICIRCULAR HORIZONTAL BASE PORTIONS, OPPOSED SEGMENTAL PILE ENGAGING CLAMP PORTIONS DEPENDENT FROM SAID HORIZONTAL BASE PORTIONS, AND MEANS FOR FORCING SAID OPPOSED CLAMP PORTIONS TOGETHER INTO RIGID HOLDING ENGAGEMENT WITH A PIPE OR TIMBER PILE, SAID BACK TO BACK UPRIGHT PORTIONS HAVING A COMBINED THICKNES TO ENTER IN THE PILE CLAMP OF A VIBRATING HAMMER AND AN UPPER EDGE TO SEAT IN RIGID ABUTING 